| Preliminary Column Experiment on Dynamics of Water and Ion Transport in Soil Affected by Root Absorption | |
Abstract/OtherAbstract
:
|
Water deficit and salt accumulation in soil are serious problems in crop fields in semi-arid regions, and these problems are likely to depend on active transpiration and selective ion absorption by crop roots. In this study, a large sized soil column system was newly developed, and a preliminary experiment with the system was conducted to examine the system performance for analyses of dynamics of water and ion transport and salt accumulation in soil with special reference to effects of the active and selective absorption of roots of different crops (i.e., corn plants, sunflower plants and no plants). The column system was equipped with on-line systems for the control of groundwater level and the TDR measurement, which enabled time course evaluations of upward flux of the groundwater, volumetric water content of soils at the different depths and electrical conductivity of the extract from the saturated soil. Furthermore, distribution and accumulation of ions in soil layers, plant organs and xylem sap were analyzed using an ion chromatograph. In this column experiment, diurnal and long term daily changes in water movement and ions accumulation in soil affected by characteristics of root absorption were evaluated. This can suggest that this column system is applicable for quantitative analyses of effects of root absorption of different crops on water deficit and salinization in soils, aiming at proposing a scientific method of the crop rotation for the environmentally conscious agriculture in semi-arid regions. |
Authors
:
|
Urayama, Kazuki, Sakata, Yoshinobu, Sonoda, Yasutaka, Ebihara, Kenji, Sago, Yuki, Yoshikoshi, Hisashi, Araki, Takuya, Yasutake, Daisuke, Cho, Hiroyuki, Kobayashi, Tetsuo, Kitano, Masaharu, 浦山, 和樹, 坂田, 圭信, 園田, 康貴, 海老原, 健二, 佐合, 悠貴, 吉越, 恆, 荒木, 卓哉, 小林, 哲夫, 安武, 大輔, 長, 裕幸, 北野, 雅治 |
Contributors
:
|
Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University[Urayama, Ebihara, Sago], Ex-student[Sakata, Sonoda], Laboratory of Plant Production Physiology, Division of Soil Science and Plant Production, Department of Plant Resources, Faculty of Agriculture, Kyushu University[Araki], Faculty of Agriculture, Kochi University[Yasutake], Laboratory of Applied Meteorology, Division of Regional Environment Science, Department of Biological Environmental Sciences, Faculty of Agriculture, Kyushu University[Kobayashi, Kitano], 九州大学大学院生物資源環境科学府[海老原. 浦山, 佐合], 九州大学農学研究院植物資源科学部門植物生産科学講座[荒木], 九州大学農学研究院生産環境科学部門[小林, 北野], 高知大学農学部[安武], 佐賀大学農学部[長] |
Publication Detail
:
|
Publisher : Faculty of Agriculture, Kyushu University, 九州大学大学院農学研究院 Type : 紀要論文, Departmental Bulletin Paper Format : 1123410 bytes, 3736 bytes, application/pdf, text/plain |
Date Detail
:
|
2009-01-07, 2009-01-07, 2008-10-28 |
Subject
:
|
soil salinization, root absorption, column experiment, TDR, Geo-Environment Science, 地水環境学 |
Coverage
:
|
- |
Relation
:
|
http://www.agr.kyushu-u.ac.jp/ |
Source
:
|
- |
Copyright Information
:
|
- |
Other Details
:
|
Languages : en |
Export Citation
:
|
APA/MLA Format Download EndNote Download BibTex |
Previous Document: Column Experiments on the Salt Accumulation in Adjoining Different-Textured Soil Profiles with a Sha...
Next Document: Present Situation and Activation of Non-National Forests Management : Focused on Jeonbuk Province in...